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Basic Information
Name: Sodium
Symbol: Na
Atomic Number: 11
Atomic Mass: 22.98977 amu
Melting Point: 97.8 °C (370.95 °K, 208.04001 °F)
Boiling Point: 552.9 °C (826.05005 °K, 1027.2201 °F)
Number of Protons/Electrons: 11
Number of Neutrons: 12
Classification: Alkali Metal
Crystal Structure: Cubic
Density @ 293 K: 0.971 g/cm3
Color: silvery
Atomic Structure
![[Bohr Model of Sodium]](Chemical Elements_com - Sodium (Na)_files/b0011.gif) |
Number of Energy Levels: 3 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 1 |
Isotopes
| Isotope | Half Life |
| Na-22 | 2.6 years |
| Na-23 | Stable |
| Na-24 | 14.96 hours |
Facts
Date of Discovery: 1807
Discoverer: Sir Humphrey Davy
Name Origin: soda (Na2CO3)
Symbol Origin: From the Latin word natrium (sodium)
Uses: medicine, agriculture
Obtained From: table salts and other foods